Chemistry: Week 4

This week we will be studying yeast, salt, and bread. Please read pp. 515-550 in the text book and answer these questions

 Yeast Specific Questions: 

1. What is yeast? 

2. Who was the first scientist to identify how yeast works? 

3. What is the different types of yeast available? 

4. Why do you have to add sugar to the yeast? 

5. What is the yeast’s function in the bread? 

6. What else is the major use of yeast in consumer products? 

Bread specific questions: 

1. Why do you have to let the bread rise twice? 

2. Why do you knead bread dough? 

3. Why do you brush the egg yolk on top of the bread before you bake it? 

4. What chemical reaction causes the elastic bread dough to form? 

5. Why happens if your body can’t digest gluten? 

6. What exactly is gluten? 

Salt specific questions: 

1. What is salt? 

2. What is the purpose in the bread? 

 

Writing: Twitter

Assignment:  We need to tweet for u.school, it’s been a while.  Come up with a well-written tweet we can post. It must be below 140- 280 characters.  Some ideas: Tell about the school, a project you are working on, summarize a major event, philosophy, or scientific or mathematical concept.  Create an inspirational quote. Write a micro-review of a book, film or song or CD. 

Share your u.school tweet with me via Google docs or e-mail (sandy@u.school) by Thursday at 3.  

Psychology :: Week 2

Make sure you are up to date on the readings from last week:

Gray, Peter. Psychology (5th edition), chapter 1

Stanovich, Keith. “How to Think Straight about Psychology.” In The Norton Psychology Reader. Edited by Gary Marcus. New York: W. W. Norton & Company, 2006. pp. 27-37

This week we will look at the brain and the mind. Your readings for Thursday are…

Gray, Peter. Psychology (5th edition), pp. 133-167

Damasio, Antonio R. “Descartes’ Error: Emotion, Reason, and the Human Brain.” In The Norton Psychology Reader. Edited by Gary Marcus. New York: W. W. Norton & Company, 2006. pp. 58-69

Sacks, Oliver. “The Man Who Mistook His Wife for a Hat and Other Clinical Tales.” In The Norton Psychology Reader. Edited by Gary Marcus. New York: W. W. Norton & Company, 2006. pp. 70-79

Chemistry :: Pancakes

For week three we are looking at the chemistry of making pancakes. Please read pp. 553-554, 46-50, 551, 668-669 in the textbook and answer the following questions and look at our recipe for the week. 

1. Do we really need to add both baking soda and baking powder? Why or why not?

2. How do they make buttermilk?
3. How do you make maple syrup?
4. What is sour cream?

5. Why do you whisk the dry ingredients separately from the wet ingredients?

6. Why don’t you want to over mix?
7. Why does the last pancake you make always taste the best?

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